/**
* This procedure was copied from the other Monte Carlo simulation code
*
* I had to change all the floats to double because in the new swarm we
* use double for masses. Also, our ensemble classes now use reference
* counted pointers and we create them in a functional way than old
* fill-this-for-me-please pointers(references). The generate name
* makes more sense that the set_initial_conditions. I only added
* one line for generating the ensemble. In the other monte carlo,
* the ensemble is generated first and then passed to this function
* to fill it in.
*
*
*/
defaultEnsemble generate_ensemble_with_randomized_initial_conditions(const config& cfg)
{
defaultEnsemble ens = defaultEnsemble::create( cfg.require("nbod",0), cfg.require("nsys",0) );
std::cerr << "# nsystems = " << ens.nsys() << " nbodies/system = " << ens.nbod() << "\n";
// std::cerr << "# Set initial time for all systems = ";
double time_init = cfg.optional("time_init", 0.0);
// std::cerr << time_init << ".\n";
const bool use_jacobi = cfg.optional("use_jacobi", 0);
bool keplerian_ephemeris = cfg.optional("use_keplerian", 1);
bool transit_ephemeris = cfg.optional("use_transit", 0);
if(transit_ephemeris) keplerian_ephemeris = 0;
assert(!(keplerian_ephemeris && transit_ephemeris)); // find a better way
for(unsigned int sys=0;sys<ens.nsys();++sys)
{
generate_initial_conditions_for_system(cfg,ens,sys,sys);
} // end loop over systems
return ens;
}
until_time_end_params(const config &cfg)
{
time_end = cfg.require("time_end", 0.0);
}
/**
* Read in Keplerian coordinates from a text file
*
*/
defaultEnsemble generate_ensemble_with_initial_conditions_keplerian_from_file(const config& cfg)
{
defaultEnsemble ens = defaultEnsemble::create( cfg.require("nbod",0), cfg.require("nsys",0) );
std::cerr << "# nsystems = " << ens.nsys() << " nbodies/system = " << ens.nbod() << "\n";
// std::cerr << "# Set initial time for all systems = ";
double time_init = cfg.optional("time_init", 0.0);
// std::cerr << time_init << ".\n";
const bool use_jacobi = cfg.optional("use_jacobi", 0);
// std::cerr << "# Writing stable system ids\n";
ifstream jacobi_input( cfg.optional("input_mcmc_keplerian", string("mcmc.out")).c_str() );
for(unsigned int sysid=0;sysid<ens.nsys();++sysid)
{
assert(jacobi_input.good());
string id;
double mass_star;
jacobi_input >> id >> mass_star;
ens[sysid].id() = sysid;
ens[sysid].time() = time_init;
ens[sysid].set_active();
double x=0, y=0, z=0, vx=0, vy=0, vz=0;
ens.set_body(sysid, 0, mass_star, x, y, z, vx, vy, vz);
double mass_enclosed = mass_star;
for(unsigned int bod=1;bod<ens.nbod();++bod)
{
double mass_planet, a, e, i, O, w, M;
jacobi_input >> mass_planet >> a >> e >> i >> w >> O >> M;
// a = pow((period/365.25)*(period/365.25)*mass_enclosed,1.0/3.0);
i *= M_PI/180.;
O *= M_PI/180.;
w *= M_PI/180.;
M *= M_PI/180.;
mass_enclosed += mass_planet;
double mass = use_jacobi ? mass_enclosed : mass_star+mass_planet;
if(cfg.count("verbose")&&(sysid<10))
std::cout << "# Drawing sysid= " << sysid << " bod= " << bod << ' ' << mass_planet << " " << a << ' ' << e << ' ' << i*180./M_PI << ' ' << O*180./M_PI << ' ' << w*180./M_PI << ' ' << M*180./M_PI << '\n';
calc_cartesian_for_ellipse(x,y,z,vx,vy,vz, a, e, i, O, w, M, mass);
// printf("%d %d: %lg (%lg %lg %lg) (%lg %lg %lg) \n", sysid, bod, mass_planet, x,y,z,vx,vy,vz);
if(use_jacobi)
{
double bx, by, bz, bvx, bvy, bvz;
ens.get_barycenter(sysid,bx,by,bz,bvx,bvy,bvz,bod-1);
x += bx; y += by; z += bz;
vx += bvx; vy += bvy; vz += bvz;
}
// assign body a mass, position and velocity
ens.set_body(sysid, bod, mass_planet, x, y, z, vx, vy, vz);
if(cfg.count("verbose")&&(sysid<10))
{
double x_t = ens.x(sysid,bod);
double y_t = ens.y(sysid,bod);
double z_t = ens.z(sysid,bod);
double vx_t = ens.vx(sysid,bod);
double vy_t = ens.vy(sysid,bod);
double vz_t = ens.vz(sysid,bod);
std::cout << " x= " << x << "=" << x_t << " ";
std::cout << " y= " << y << "=" << y_t << " ";
std::cout << " z= " << z << "=" << z_t << " ";
std::cout << "vx= " << vx << "=" << vx_t << " ";
std::cout << "vy= " << vy << "=" << vy_t << " ";
std::cout << "vz= " << vz << "=" << vz_t << "\n";
}
} // end loop over bodies
// Shift into barycentric frame
ens.get_barycenter(sysid,x,y,z,vx,vy,vz);
for(unsigned int bod=0;bod<ens.nbod();++bod)
{
ens.set_body(sysid, bod, ens.mass(sysid,bod),
ens.x(sysid,bod)-x, ens.y(sysid,bod)-y, ens.z(sysid,bod)-z,
ens.vx(sysid,bod)-vx, ens.vy(sysid,bod)-vy, ens.vz(sysid,bod)-vz);
} // end loop over bodies
} // end loop over systems
return ens;
}
/**
* Read in Cartesian coordinates from a text file
*
*/
defaultEnsemble generate_ensemble_with_initial_conditions_cartesian_from_file(const config& cfg)
{
defaultEnsemble ens = defaultEnsemble::create( cfg.require("nbod",0), cfg.require("nsys",0) );
std::cerr << "# nsystems = " << ens.nsys() << " nbodies/system = " << ens.nbod() << "\n";
// std::cerr << "# Set initial time for all systems = ";
double time_init = cfg.optional("time_init", 0.0);
// std::cerr << time_init << ".\n";
const bool use_jacobi = cfg.optional("use_jacobi", 0);
// std::cerr << "# Writing stable system ids\n";
ifstream mcmc_input( cfg.optional("input_mcmc_cartesian", string("mcmc.out")).c_str() );
assert(mcmc_input.good());
const int lines_to_skip = cfg.optional("lines_to_skip", 0);
for(int i=0;i<lines_to_skip;++i)
{
assert(mcmc_input.good());
char junk[1024];
mcmc_input.getline(junk,1024);
}
for(unsigned int sysid=0;sysid<ens.nsys();++sysid)
{
assert(mcmc_input.good());
#if 1
std::vector<double> masses(ens.nbod(),0.0);
for(unsigned int bod=0;bod<ens.nbod();++bod)
{
mcmc_input >> masses[bod];
} // end loop over bodies
ens[sysid].id() = sysid;
ens[sysid].time() = time_init;
ens[sysid].set_active();
double x=0, y=0, z=0, vx=0, vy=0, vz=0;
ens.set_body(sysid, 0, masses[0], x, y, z, vx, vy, vz);
double mass_enclosed = masses[0];
for(unsigned int bod=1;bod<ens.nbod();++bod)
{
mcmc_input >> x >> y >> z >> vx >> vy >> vz;
mass_enclosed += masses[bod];
double mass = use_jacobi ? mass_enclosed : masses[0]+masses[bod];
if(cfg.count("verbose")&&(sysid<10))
std::cout << "# Drawing sysid= " << sysid << " bod= " << bod << ' ' << masses[bod] << " " << x << ' ' << y << ' ' << z << ' ' << vx << ' ' << vy << ' ' << vz << '\n';
if(use_jacobi)
{
double bx, by, bz, bvx, bvy, bvz;
ens.get_barycenter(sysid,bx,by,bz,bvx,bvy,bvz,bod-1);
x += bx; y += by; z += bz;
vx += bvx; vy += bvy; vz += bvz;
}
// assign body a mass, position and velocity
ens.set_body(sysid, bod, masses[bod], x, y, z, vx, vy, vz);
if(cfg.count("verbose")&&(sysid<10))
{
double x_t = ens.x(sysid,bod);
double y_t = ens.y(sysid,bod);
double z_t = ens.z(sysid,bod);
double vx_t = ens.vx(sysid,bod);
double vy_t = ens.vy(sysid,bod);
double vz_t = ens.vz(sysid,bod);
std::cout << " x= " << x << "=" << x_t << " ";
std::cout << " y= " << y << "=" << y_t << " ";
std::cout << " z= " << z << "=" << z_t << " ";
std::cout << "vx= " << vx << "=" << vx_t << " ";
std::cout << "vy= " << vy << "=" << vy_t << " ";
std::cout << "vz= " << vz << "=" << vz_t << "\n";
}
#else
std::vector<double> masses(ens.nbod(),0.0);
double x=0, y=0, z=0, vx=0, vy=0, vz=0;
double mass_enclosed = 0.0;
ens[sysid].id() = sysid;
ens[sysid].time() = time_init;
ens[sysid].set_active();
for(unsigned int bod=0;bod<ens.nbod();++bod)
{
mcmc_input >> masses[bod];
mcmc_input >> x >> y >> z >> vx >> vy >> vz;
mass_enclosed += masses[bod];
double mass = use_jacobi ? mass_enclosed : masses[0]+masses[bod];
if(cfg.count("verbose")&&(sysid<10))
std::cout << "# Drawing sysid= " << sysid << " bod= " << bod << ' ' << masses[bod] << " " << x << ' ' << y << ' ' << z << ' ' << vx << ' ' << vy << ' ' << vz << '\n';
if(use_jacobi)
{
double bx, by, bz, bvx, bvy, bvz;
ens.get_barycenter(sysid,bx,by,bz,bvx,bvy,bvz,bod-1);
x += bx; y += by; z += bz;
vx += bvx; vy += bvy; vz += bvz;
}
// assign body a mass, position and velocity
ens.set_body(sysid, bod, masses[bod], x, y, z, vx, vy, vz);
if(cfg.count("verbose")&&(sysid<10))
{
double x_t = ens.x(sysid,bod);
double y_t = ens.y(sysid,bod);
double z_t = ens.z(sysid,bod);
double vx_t = ens.vx(sysid,bod);
double vy_t = ens.vy(sysid,bod);
double vz_t = ens.vz(sysid,bod);
std::cout << " x= " << x << "=" << x_t << " ";
std::cout << " y= " << y << "=" << y_t << " ";
std::cout << " z= " << z << "=" << z_t << " ";
std::cout << "vx= " << vx << "=" << vx_t << " ";
std::cout << "vy= " << vy << "=" << vy_t << " ";
std::cout << "vz= " << vz << "=" << vz_t << "\n";
}
#endif
} // end loop over bodies
// Shift into barycentric frame
ens.get_barycenter(sysid,x,y,z,vx,vy,vz);
for(unsigned int bod=0;bod<ens.nbod();++bod)
{
ens.set_body(sysid, bod, ens.mass(sysid,bod),
ens.x(sysid,bod)-x, ens.y(sysid,bod)-y, ens.z(sysid,bod)-z,
ens.vx(sysid,bod)-vx, ens.vy(sysid,bod)-vy, ens.vz(sysid,bod)-vz);
} // end loop over bodies
} // end loop over systems
return ens;
}
void print_system(const swarm::ensemble& ens, const int systemid, std::ostream &os = std::cout)
{
enum {
JACOBI, BARYCENTRIC, ASTROCENTRIC
} COORDINATE_SYSTEM = BARYCENTRIC;
const bool use_jacobi = cfg.optional("use_jacobi_output", 0);
if(use_jacobi) COORDINATE_SYSTEM = JACOBI;
std::streamsize cout_precision_old = os.precision();
os.precision(10);
os << "sys_idx= " << systemid << " sys_id= " << ens[systemid].id() << " time= " << ens.time(systemid) << "\n";
double star_mass = ens.mass(systemid,0);
double mass_effective = star_mass;
double bx, by, bz, bvx, bvy, bvz;
switch(COORDINATE_SYSTEM)
{
case JACOBI:
ens.get_barycenter(systemid,bx,by,bz,bvx,bvy,bvz,0);
break;
case BARYCENTRIC:
ens.get_barycenter(systemid,bx,by,bz,bvx,bvy,bvz);
break;
case ASTROCENTRIC:
ens.get_body(systemid,0,star_mass,bx,by,bz,bvx,bvy,bvz);
break;
}
for(unsigned int bod=1;bod<ens.nbod();++bod) // Skip star since printing orbits
{
// std::cout << "pos= (" << ens.x(systemid, bod) << ", " << ens.y(systemid, bod) << ", " << ens.z(systemid, bod) << ") vel= (" << ens.vx(systemid, bod) << ", " << ens.vy(systemid, bod) << ", " << ens.vz(systemid, bod) << ").\n";
double mass = ens.mass(systemid,bod);
switch(COORDINATE_SYSTEM)
{
case JACOBI:
ens.get_barycenter(systemid,bx,by,bz,bvx,bvy,bvz,bod-1);
mass_effective += mass;
break;
case BARYCENTRIC:
mass_effective = star_mass + mass;
break;
case ASTROCENTRIC:
mass_effective = star_mass + mass;
break;
}
double x = ens.x(systemid,bod)-bx;
double y = ens.y(systemid,bod)-by;
double z = ens.z(systemid,bod)-bz;
double vx = ens.vx(systemid,bod)-bvx;
double vy = ens.vy(systemid,bod)-bvy;
double vz = ens.vz(systemid,bod)-bvz;
double a, e, i, O, w, M;
calc_keplerian_for_cartesian(a,e,i,O,w,M, x,y,z,vx,vy,vz, mass_effective);
i *= 180/M_PI;
O *= 180/M_PI;
w *= 180/M_PI;
M *= 180/M_PI;
// os << " b= " << bod << " m= " << mass << " a= " << a << " e= " << e << " i= " << i << " Omega= " << O << " omega= " << w << " M= " << M << "\n";
os << ens[systemid].id() << " " << bod << " " << mass << " " << a << " " << e << " " << i << " " << O << " " << w << " " << M << "\n";
}
os.precision(cout_precision_old);
os << std::flush;
}
void print_selected_systems(swarm::ensemble& ens, std::vector<unsigned int> systemindices, std::ostream &os = std::cout)
{
for(unsigned int i=0; i<systemindices.size(); ++i)
print_system(ens,systemindices[i], os);
}
void print_selected_systems_for_demo(swarm::ensemble& ens, unsigned int nprint, std::ostream &os = std::cout)
{
if(nprint>ens.nsys()) nprint = ens.nsys();
for(unsigned int systemid = 0; systemid< nprint; ++systemid)
print_system(ens,systemid,os);
}
void write_stable_systems(defaultEnsemble &ens, defaultEnsemble &ens_init)
{
// find the stable ones and output the initial conditions for the stable
// ones in keplerian coordinates
// std::cerr << "# Finding stable system ids\n";
std::vector<unsigned int> stable_system_indices, unstable_system_indices;
for(int i = 0; i < ens.nsys() ; i++ )
{
if(ens[i].is_disabled())
unstable_system_indices.push_back(i);
else
stable_system_indices.push_back(i);
}
// std::cerr << "# Writing stable system ids\n";
if(cfg.count("stable_init_output"))
{
ofstream stable_init_output( cfg.optional("stable_init_output", string("stable_init_output.txt")).c_str() );
print_selected_systems(ens_init,stable_system_indices, stable_init_output);
}
if(cfg.count("stable_final_output"))
{
ofstream stable_final_output( cfg.optional("stable_final_output", string("stable_final_output.txt")).c_str() );
print_selected_systems(ens,stable_system_indices, stable_final_output);
}
if(cfg.count("unstable_init_output"))
{
ofstream unstable_init_output( cfg.optional("unstable_init_output", string("unstable_init_output.txt")).c_str() );
print_selected_systems(ens_init,unstable_system_indices, unstable_init_output);
}
if(cfg.count("unstable_final_output"))
{
ofstream unstable_final_output( cfg.optional("unstable_final_output", string("unstable_final_output.txt")).c_str() );
print_selected_systems(ens,unstable_system_indices, unstable_final_output);
}
}
mvs_cpu(const config& cfg): base(cfg),_time_step(0.001), _mon_params(cfg) {
_time_step = cfg.require("time_step", 0.0);
}
//! Constructor for MVSPropagatorParams
MVSPropagatorParams(const config& cfg){
time_step = cfg.require("time_step", 0.0);
}
